Syntensity – port Sauerbraten/Syntensity from C++ to the web

Last Updated on July 13, 2021

Syntensity is a world of 3D games that anyone can play in and anyone can help build. It is a multiplayer 3D game platform built upon the Cube2 (Sauerbraten) Engine. It is an open source project that consists of a client, server, and master (metadata) server; everything you need to run your own games or your own virtual world.

The engine allows you to create maps using the Cube in-game editor, and then script them using JavaScript, allowing you to rapidly pump out any game idea you can imagine.

Syntensity lets you create all kinds of games. Each ‘map’ can be a completely new game, with unique events, rules, weapons (or even having no weapons at all), physics, etc. For example, creating an ‘ice material’ is very simple.

Games are written in JavaScript, and Syntensity utilizes the high-performance Google V8 JavaScript engine to make things fast.

Features include:

  • 3D rendering (from Cube 2).
  • High-level scripting API for game creation, in JavaScript (running on Google V8), which can run scripts on both client and server and transparently synchronize them.
  • A large library of useful scripting code – weapons, movement options, items, events, etc.
  • Physics (from Cube 2, currently working on adding Bullet physics as an option), both clientside and serverside (customizable).
  • In-world editing, also in multiplayer (from Cube 2, with some additions).
  • A plugin system, using Python, for extending the engine with additional components (plugins exist for saving highscore data locally using SQLite, etc., and experimental plugins exist for VLC, WebKit, Skype, etc).
  • An experimental browser plugin (for running the client in a web browser).

Support: Forum
Developer: Alon Zakai, Gregor Koch (art and design)
License: MIT/X11 license


Syntensity is written in C++ and C. Learn C++ with our recommended free books and free tutorials. Learn C with our recommended free books and free tutorials.

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